#top-menu>li>a:hover:before{-webkit-transform:translateY(13px);transform:translateY(13px);opacity:2}#top-menu>li>a:before{content:'';position:absolute;top:12px;left:0;background:#004aad;width:100%;height:2px;-webkit-transform:translateY(13px);transform:translateY(13px);opacity:0;transition:0.5s ease}